MASSEY FERGUSON 5400 - Assembling and Refitting the

Massey Ferguson 5400 - Issue 1.a
05D02.20
GBA20 Speedshift with Power Shuttle
J . Assembling and refitting the
front cover
Reassembly
58. Clean the cover. Make sure that the 17 bar channel
and the lubricating channel are not blocked. Check
that sealing rivets (2) and (11) are fitted.
59. Fit seals (22) and (23) on piston (48).
60. Lubricate the mating faces of the piston seals in
the cover (27).
61. Position the piston in the cover, turning the
grooves towards the operator.
62. Fit the piston (48) home using a plastic mallet,
gradually and alternately striking around the
circumference of piston (Fig. 20).
Check that there are no fragments of O'rings after
fitting.
63. If work is necessary on the ring carrier (33):
- check that channels are not blocked and that the
ball (40) is correctly crimped in its port (Fig. 21).
If necessary, force fit the needle bearing (32)
18.13 to 18.33 mm from side "F" (Fig. 21);
- position the ring carrier on the cover, making
sure that the low pressure port (17 bar) and the
lubricating port correspond respectively to those
in the cover;
- fit and tighten screws (34) and (41), lightly
smeared with Loctite 242 or similar, to a torque
of 25 - 35 Nm.
64. Check that the lubricating ports on shaft (36) are
not blocked.
65. Slide the shaft in the ring carrier.
66. Install washer (38) and circlip (37).
48
MA-05-00375A
Fig. 20
32
33
40
F
18,13 à 18,33 mm
MA-05-00376A
Fig. 21